Rogue Amoeba has announced the release of Airfoil 3.3.1, an updated version of their popular Airport Express streaming utility for Mac OS X. According to the release notes, this version of the software adds support for the AirPort Express 7.4.2 firmware and Apple TV 2.4 software. Airfoil 3.3.1 also includes the following fixes and improvements:

Airfoil no longer works around firewalls by sending an initial fake timing packet The auto-transmit checkbox in Preferences now behaves properly with disappearing speakers. Issues with deadlocked speaker threads, caused by setting metadata on disconnected speakers, have been resolved. Multiple Airfoil Video Player issues have been corrected, including bad player state when a new movie is dragged in and the jumping playhead slider. The volume settings and position indicators are also now properly handled when dragging in a new movie.